Question

simplifique estas expressões algébricas.

a- 2b - b + 5b

b- 7c - 2c - 8c + 10d

c- 7m - 3 m

d- -5 + 3t - 7 - 12t + 5

e- -5xy + 3xy - 7 + 2x - 12 - 2 x

f- m/3 - 2m/9

Me ajudem!

Answer 1

a) (2-1+5)b= 6b
b)(7-2-8)c+(10)d= -3c+10d
c) (7-3)m= 4m
d) (+3-12)t +(-5-7+5)= -9t-7
e)( -5+3)xy+(+2x-2x)+(-7-12)= -2xy-19
f) m/3×3=3m/9_2m/9= (3/9-2/9)m= 1m/9